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/*******************************************************************************
* Copyright (c) 2004, 2007 Boeing.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Boeing - initial API and implementation
*******************************************************************************/
package org.eclipse.osee.orcs.db.internal.search.handlers;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.eclipse.osee.framework.core.data.IAttributeType;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.core.util.Conditions;
import org.eclipse.osee.framework.database.core.AbstractJoinQuery;
import org.eclipse.osee.framework.jdk.core.util.Collections;
import org.eclipse.osee.framework.jdk.core.util.Strings;
import org.eclipse.osee.orcs.core.ds.DataPostProcessor;
import org.eclipse.osee.orcs.core.ds.DataPostProcessorFactory;
import org.eclipse.osee.orcs.core.ds.QueryOptions;
import org.eclipse.osee.orcs.core.ds.criteria.CriteriaAttributeKeywords;
import org.eclipse.osee.orcs.db.internal.search.tagger.HasTagProcessor;
import org.eclipse.osee.orcs.db.internal.search.tagger.TagCollector;
import org.eclipse.osee.orcs.db.internal.search.tagger.TagProcessor;
import org.eclipse.osee.orcs.db.internal.sql.AbstractSqlWriter;
import org.eclipse.osee.orcs.db.internal.sql.HasDataPostProcessorFactory;
import org.eclipse.osee.orcs.db.internal.sql.SqlHandler;
import org.eclipse.osee.orcs.db.internal.sql.TableEnum;
import org.eclipse.osee.orcs.db.internal.sql.WithClause;
import org.eclipse.osee.orcs.db.internal.sql.WithClause.WithAlias;
/**
* @author Roberto E. Escobar
*/
public class AttributeTokenSqlHandler extends SqlHandler<CriteriaAttributeKeywords, QueryOptions> implements HasTagProcessor, HasDataPostProcessorFactory<CriteriaAttributeKeywords> {
private CriteriaAttributeKeywords criteria;
private static final int MAX_TOKEN_SIZE = 20;
private String artAlias;
private String attrAlias;
private String txsAlias;
private DataPostProcessorFactory<CriteriaAttributeKeywords> factory;
private TagProcessor tagProcessor;
@Override
public void setDataPostProcessorFactory(DataPostProcessorFactory<CriteriaAttributeKeywords> factory) {
this.factory = factory;
}
@Override
public DataPostProcessorFactory<CriteriaAttributeKeywords> getDataPostProcessorFactory() {
return factory;
}
@Override
public void setTagProcessor(TagProcessor tagProcessor) {
this.tagProcessor = tagProcessor;
}
@Override
public TagProcessor getTagProcessor() {
return tagProcessor;
}
@Override
public void setData(CriteriaAttributeKeywords criteria) {
this.criteria = criteria;
}
@Override
public void addWithTables(AbstractSqlWriter<QueryOptions> writer) throws OseeCoreException {
List<String> values = new ArrayList<String>(criteria.getValues());
Collection<? extends IAttributeType> types = criteria.getTypes();
int valueCount = values.size();
int tagsCount = 0;
StringBuilder gammaSb = new StringBuilder();
for (int valueIdx = 0; valueIdx < valueCount; valueIdx++) {
List<Long> tags = new ArrayList<Long>();
String value = values.get(valueIdx);
tokenize(value, tags);
int tagsSize = tags.size();
gammaSb.append("(");
for (int tagIdx = 0; tagIdx < tagsSize; tagIdx++, tagsCount++) {
Long tag = tags.get(tagIdx);
gammaSb.append("SELECT gamma_id FROM osee_search_tags WHERE coded_tag_id = ?");
writer.addParameter(tag);
if (tagIdx + 1 < tagsSize) {
gammaSb.append("\n INTERSECT \n");
}
}
gammaSb.append(") ");
if (valueIdx + 1 < valueCount) {
gammaSb.append("\n UNION ALL \n");
}
}
Conditions.checkExpressionFailOnTrue(tagsCount > MAX_TOKEN_SIZE, "Parsed tokens for [%s] is greater than [%d]",
Collections.toString(", ", criteria.getValues()), MAX_TOKEN_SIZE);
WithClause gammaWith = new WithClause(gammaSb.toString(), WithAlias.GAMMA);
String gammaAlias = writer.addWithClause(gammaWith);
String jIdAlias = null;
StringBuilder attrSb = new StringBuilder();
attrSb.append("SELECT art_id FROM osee_attribute att, osee_txs txs, ");
if (!criteria.isIncludeAllTypes() && types.size() > 1) {
jIdAlias = writer.getNextAlias(TableEnum.ID_JOIN_TABLE);
attrSb.append("osee_join_id ");
attrSb.append(jIdAlias);
attrSb.append(", ");
}
attrSb.append(gammaAlias);
attrSb.append(" WHERE att.gamma_id = ");
attrSb.append(gammaAlias);
attrSb.append(".gamma_id AND att.gamma_id = txs.gamma_id AND ");
attrSb.append(writer.getTxBranchFilter("txs"));
if (!criteria.isIncludeAllTypes()) {
attrSb.append(" AND att.attr_type_id = ");
if (types.size() == 1) {
attrSb.append("?");
int localId = toLocalId(criteria.getTypes().iterator().next());
writer.addParameter(localId);
} else {
Set<Integer> typeIds = new HashSet<Integer>();
for (IAttributeType type : types) {
typeIds.add(toLocalId(type));
}
AbstractJoinQuery joinQuery = writer.writeIdJoin(typeIds);
attrSb.append(jIdAlias);
attrSb.append(".id AND ");
attrSb.append(jIdAlias);
attrSb.append(".query_id = ?");
writer.addParameter(joinQuery.getQueryId());
}
}
WithClause attrWith = new WithClause(attrSb.toString(), WithAlias.ATTRIBUTE);
attrAlias = writer.addWithClause(attrWith);
writer.addTable(attrAlias);
}
@Override
public void addTables(AbstractSqlWriter<QueryOptions> writer) {
List<String> aliases = writer.getAliases(TableEnum.ARTIFACT_TABLE);
List<String> txs = writer.getAliases(TableEnum.TXS_TABLE);
if (aliases.isEmpty()) {
artAlias = writer.addTable(TableEnum.ARTIFACT_TABLE);
}
if (txs.isEmpty()) {
txsAlias = writer.addTable(TableEnum.TXS_TABLE);
}
}
@Override
public boolean addPredicates(AbstractSqlWriter<QueryOptions> writer) throws OseeCoreException {
DataPostProcessor<?> processor = getDataPostProcessorFactory().createPostProcessor(criteria, writer.getOptions());
writer.addPostProcessor(processor);
if (!Strings.isValid(artAlias)) {
artAlias = writer.getAliases(TableEnum.ARTIFACT_TABLE).iterator().next();
}
if (!Strings.isValid(txsAlias)) {
txsAlias = writer.getAliases(TableEnum.TXS_TABLE).iterator().next();
}
writer.write("%s.art_id = %s.art_id", artAlias, attrAlias);
writer.writeAndLn();
writer.write(writer.getTxBranchFilter(txsAlias));
writer.writeAndLn();
writer.write("%s.gamma_id = %s.gamma_id", txsAlias, artAlias);
return true;
}
@Override
public int getPriority() {
return SqlHandlerPriority.ATTRIBUTE_TOKENIZED_VALUE.ordinal();
}
private void tokenize(String value, final Collection<Long> codedTags) {
TagCollector collector = new TagCollector() {
@Override
public void addTag(String word, Long codedTag) {
codedTags.add(codedTag);
}
};
getTagProcessor().collectFromString(value, collector);
}
}
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